SEBA Hydrometrie GmbH & Co. KG

- Dipper-APT Absolute Pressure

Category: Groundwater -High-performance 32 bit measurement data collector with an absolute pressure sensor for measuring points prone to over-flooding and for swelling pressure measurements at great depths -Precise, long-life, stable ceramic-capacitive absolute pressure sensor, for measuring ranges up to max. 20 bar, NTC30 temperature sensor with an 0.3° C (standard) or 0.1° C (optional) accuracy -Sturdy, sleek Ø 22 mm stainless-steel case -XL ring memory for approximately 560.000 measurement data -Replaceable lithium batteries for about 8-10 years service life -Operation with notebook, tablet, PC, smartphone or tablet via Bluetooth (optional) -Air pressure compensation with additional Baro-Dipper and Software DEMASdb -Modularly expandable with a data transmission module SlimCom3G

32-bit microprocessor with 8 MB of memory for 560,000 readings

Virtually maintenance free:
No battery replacement necessary, no running operational costs

Installation using 1' tube diameter (probe)

Accurate and reliable:

  • Water level: 0.05% measurement accuracy (= 1cm at 20m measurement range)
  • A wide selection of ceramic capacitive absolute pressure transducers from 0.2 bar to 20 bar 
  • Temperature: 0.3° C (standard), 0.1° C (optional)

Stainless steel housing 1.4404 (standard) or 1.4539 (option) for use in extreme conditions (landfill sites, contaminated, brackish water etc.)

Pressure-tight housing (IP68) suitable for measuring points that are regularly flooded. The barometric pressure compensation is carried out in conjunction with a synchronised clocked Baro-Dipper.

Suspension with kevlar or steel cable (standard), multi-core special measuring cable with the RS485 interface (optional).

Two clever APPs are available for configuration and data read-out of the Dipper-APT. Operating software for beginners ConfigPC (Windows) a user-friendly interface (Wizard) for various routine tasks. SEBA ConfigAPP (Android) combined with SEBA BlueCon enables conveneient communiction via Bluetooth between a smartphone or tablet with a logger.

Using the pluggable data transmission module SlimCom3G together with the Dipper-APT (special cable version) allows the system to converted into an online station.


  • Environmental monitoring in groundwater and surface water monitoring stations with risk of flooding, in addition to upland and lowland moors
  • Monitoring of swelling pressure stations and measuring points with large measuring range fluctuations